Btjssell b



` (No Model.)

. R. B. PERKINS.

Lantern.

No. 234,926. Patented Nov. 30,1880.

ffzfemses. mi/6 /a UNITED STATES RUSSELL B. PERKINS, OF MERIDEN,CONNECTICUT, ASSIGNOR TO EDWARD MILLER 8v CO., OF SAME PLACE.

LANTERN.

SPECIFICATION forming part of Letters Patent No. 234,926, dated November30, 1880.

Application led October 11, 1880.

To all whom it may concern Be it known that I, RUssELL B. PERKiNs, ofMeriden, in the county of New Haven and State of Connecticut, haveinvented new Improvements in Lanterns, and I do hereby declare thefollowing, when taken in connection with the accompanying drawings andthe letters ot' reference marked thereon, to be a full, clear, and exactdescription of the same, and

1o which said drawings constitute part of this specification, andrepresent, in

Figure 1,a side view, Fig. 2, vertical section.

This invention relates to an improvement in that class ot' lanterns inwhich the globe is i5 removable and held in place by an adjustable ringat the top which sets down onto the neck of the globe.

In the usual construction the ring has a partial rotation, which,combined with cams,

2o gives a vertical movement to the ring, to force it onto the globewhen turned in one direction, or raise it therefrom when turned in theopposite direction; but this construction makes a hard, rigid,nnyielding bearing upon the globe, which frequently causes the globe tobreak from the great expansion produced by heat from the tlame within.

The object of this invention is principallyY to overcome thisdifficulty; and it consists in 3o the construction hereinafterdescribed, and

particularly recited in the claim.

As here represented the invention is applied to what are known astubular lanterns ;77 but the tubes are not essential to the invention.

A is a stationary ring, here represented as supported by the tubes B Bat the side. Within this ring A is a concentricring, C, movable up anddown in the ring A as a guide. At

4o some convenient point a spring, l), is applied, attached to thestationary ring` A or other stationary part of the lantern, and so as tobear with its free end on the movable ring O, and so that lifting uponthe ring` C will move D it upward, compressing the said spring D, as inFig. 2, or left free. The spring will force the ring downward, as inFig. l, so that if, when the ring is lifted, as seen in Fig 2, the globebe introduced to its position, and the 5o ring permitted to fall, as inFig. l, it will engage the neck of the globe E, and by the pressure ofthe spring D hold it in its Xed position. The spring readily yielding toany (No model.)

expansion or contract-ion of the globe, overcomes the difficultyexisting in the use of the cams in connection with the xed and unmovablerings.

It is generally desirable to mechanically hold the ring C in its raisedposition when the globe is removed. To this end a stud, a, 6o 1sintroduced in one ot' the rings, and an L- shaped slot, d, made in theother part, here represented as the stud on the stationary' part, andthe slot in the movable part, both shown in broken lines, and as uponthe inside ot' the 65 ring A; but the order may be reversed. Hence inraising the ring C the vertical part ot' the slot d passes over thestudv until raised to its full height, (see Fig. then turned to bringthe horizontal partl of the slot onto the stud, 7o. will hold the ring Cin its raised position, then. returning the ring C to bring the studinto line with the vertical position of the slot, the spring will throwthe ring downward.

If, as here represented, the end ot' the spring 75 D be turned inwardinto an opening, c, in the ring C, it will be necessary to elongate theslot in order to permit the ring C to be turned.

While preferring to attach the spring permanently to a tixed part ot`the lantern and 8o the free or moving end to engage the movable ring Cthis order may be reversed, and the spring rigidly attached to the ringC, its free end bearing on a fixed part of the lantern.

Other kinds of' springs may be substituted 85 for the spring shown, butthis is believed to be the best arrangement.

I do not broadly claim a.vertically-movable ring arranged to set uponthe neck of the globe either with or without springs to force 9o itdownward.

I claim- The combination, in a lantern, ot' a ring at the top movable upand down to engage or release the neck ofthe globe with a tixed supportor guide for said ring, and a spring acting upon said ring t0 force itdown upon the neck ot' the globe with an I -shapedslot on the one partand a stud on the other part working in said slot to hold the said ringin too its raised position, substantially as described.

RUSSELL B. PERKINS.

Vitnesses:

BENJ. C. KENNARD, FREDK. S. WILLIAMS.

